Simulation and Analysis

Simulation performance and analysis tools and techniques

Simulate and analyze the performance of your models using functions and analysis tools.

Blocks

Powergui	Environment block for Simscape Electrical Specialized Power Systems models
Load Flow Bus	Identify and parameterize load flow bus

Functions

`power_analyze`	Analyze electric circuit
`power_init`	Set initial state values of model built with Simscape Electrical Specialized Power Systems software
`power_initstates`	Compute and modify initial values of voltages and currents of model
`power_loadflow`	Perform positive-sequence load flow or unbalanced load flow and initialize models containing load flow blocks
`power_report`	Generate report of steady state variables, initial states, and machine load flow for model
`power_statespace`	Compute state-space model of linear electrical circuit
`power_steadystate`	Compute steady-state values of voltages and currents of model
`power_ltiview`	Create state-space object of model for use with the Linear System Analyzer tool

Analysis Tools

FFT Analyzer	Perform Fourier analysis of simulation data signals
Load Flow Analyzer	Perform positive-sequence load flow or unbalanced load flow and initialize models containing load flow blocks
Measurements and States Analyzer	Compute initial and steady-state values of voltages and currents of model
Impedance Measurement Tool	Compute impedance versus frequency of Impedance Measurement blocks in model
Power Cable Parameters	Compute RLC matrices and frequency-dependent parameters of cable arrangement
Linear System Analyzer	Create state-space object of model for use with the Linear System Analyzer tool
Report Generator	Generate report of steady state variables, initial states, and machine load flow for model
Statistical Flicker Level Analyzer	Perform statistical analysis of instantaneous flicker level signal
Transformer Hysteresis Design Tool	View and edit hysteresis characteristic for saturable core of Saturable Transformer blocks

Topics

Choosing an Integration Method
Explore the advantages and disadvantages for continuous, discrete, and phasor simulation of power system models.
Simulating with Continuous Integration Algorithms
Learn about methods for continuous simulation of switches and power electronic devices.
Simulating Discretized Electrical Systems
Learn about methods for discrete simulation of switches and power electronic devices.
Introducing the Phasor Simulation Method
Use the phasor method to analyze magnitudes and phases in linear circuits.
Increasing Simulation Speed
Optimize simulation speed by discretizing your model or by using Simulink^® Accelerator mode.

Featured Examples

IEEE 13 Node Test Feeder

The use of the Load Flow tool of Powergui to initialize the IEEE 13 Node Test Feeder circuit.

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Initializing a 5-Bus Network with the Load Flow Tool of Powergui

The use of the Load Flow tool of Powergui to initialize a simple 5-bus network consisting of a wind farm connected to a 25-kV distribution feeder and exporting power to a 120 kV network.

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Initializing a 29-Bus, 7-Power Plant Network with the Load Flow Tool of Powergui

The use of the Load Flow tool of Powergui to initialize a 29-bus 735 kV network with detailed modeling of power plants using hydraulic turbines, speed regulation, excitation systems and power system stabilizers.

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Four Coupled 66-kV Cables

Compares the steady state and transient responses of two different cable designs whose R L C parameters are calculated using the Power Cable Parameters app.

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Interfacing Simulink Models with Simscape Electrical Specialized Power Systems

The interfaces between Simulink® and Simscape™ Electrical™ Specialized Power Systems to design a custom synchronous machine model. It also shows an example of a customized Synchronous Machine block

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Interfacing Simscape Models with Simscape Electrical Specialized Power Systems

The interface between Simscape™ and Simscape Electrical™ Specialized Power Systems to design a breaker model.

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Increased Accuracy and Simulation Speed Using Interpolation

Use the interpolation method on the powergui to preserve model accuracy for simulations with larger time steps.

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Running a Grid-Connected PV Array Model in Real-Time Using Decoupling Line Blocks

Simulate a grid-connected PV array model in real-time and how Decoupling Line blocks are used to avoid CPU overload by dividing the model into two concurrent tasks on a Speedgoat real-time target machine.

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